Concrete-tile form.



G. G. DRESS.

CONCRETE TILE FORM.

APPLICATION FILED SEPT. 2. m5.

Patented J an. 9, 1917.

IA/VE/VTUR (712 G. CHESS syh g A TTOR/VE Y8 WITNESSES:

GUY G. CHESS, or BENEDICT, KANSAS.

CONCRETE-TILE FORM.

Specification of Letters Patent.

Patented Jan. 9, 1917.

' Application filed September 2, 1915. Serial No. 48,627.

To all whom it may concern Be it known that I, GUY G. CRnss, a citizen of the United States, and a resident of Benedict, in the county of Vilson and State of Kansas, have invented certain new and useful Improvements in Concrete- Tile Forms, of which the following is a specification.

My invention relates to improvements in concrete tile forms and has for an object to provide a tile mold having a novel form of eXpansible shell.

A further object is to provide novel means whereby the shell of the mold may be locked in operative position while the tile is being formed and means whereby the shell may be quickly expanded to permit the removal of the same from the finished tile, novel means being also provided whereby the core may be quickly contracted to permit the removal of the same from the finished tile.

\Vith the above and other objects in view my invention consists of certain features of construction, arrangement and combination of parts as will hereinafter be set forth and pointed out in the claims, reference being had to the accompanying drawings in which Figure 1 is a perspective view of the complete device assembled and in position for molding the tile. Fig. 2 is a horizontal section on line 22 of Fig. 1. Fig. 3 is a central vertical section of the upper part of the mold as assembled. Fig. 4C is a perspective view of the upper part of the mold showing the shell expanded. Fig. 5 is a perspective view of a locking device for holding the shell in operative position.

Referring more particularly to the draw ings 6 represents the outer shell formed of a single sheet of resilient metal or other suitable material bent into substantially cylindrical form with its ends overlapping as plainly shown in Figs. 2 and 4:. Along one vertical edge of the shell are disposed the spaced brackets 7 having perforated ears 8, while set back some distance from the opposite vertical edge of the shell are disposed the spaced apart brackets 9 having perforated ears 10, the brackets 9 and the ears 10 being similar to the brackets 7 and ears 8; as shown these brackets may be made of strips of metal bent back on themselves with a part enlarged or bulged to constitute the ears; or the brackets may be cast with the ears integral; these several brackets are then riveted or otherwise secured to the outer face of the shell. Tohold the shell in operative position the removable rod 11 provided with a handle 12 is used, said rod being passed through the ears of the several brackets when they are brought into vertical alinement. V

The core of themold is composed of sheet of resilient metal 13, which normally will contract as indicated in dotted lines in Fig. 2. The core is bent to substantially cylindrical shape which is smaller than the shell and concentric therewith leaving a space 14 between said core and shell; it is within this annular space 14 that the tile is formed. Set back from one vertical edge of the core and on its inner surface are disposed the brackets 15 having ears 16 within which fits a, rod 17 having a handle 18' similar to the rod 11 and handle 12 used with the shell; adjacent to. the opposite vertical edge of the core and on its inner surface are disposed the spaced apart brackets 19 having cars 20, said brackets 19 being brought into I vertical alinelnent with the brackets 15. The edge of the core which fits inside is provided with the bent tongues or abutinents 21 which are formed by making parallel horizontal slits 22 in the edge and bending the portion between the slits to an inclined position as shown in Figs. 2 and 3; the oflice of these tongues is to receive the cars of the brackets 19 and guide them whereby the core can be materially contracted. Upon the upper end of the core is removably fitted the cap 23 which is conical shaped and has a flange 24 fitting over the upper edge of the case, said cap serving to direct the concrete or other material evenly into the annular space 14: as it is poured to form the tile therein. The mold rests upon a pallet 25 when it is to be used for making tiles. In operating the pallet is placed in position and the mold placed thereon with parts looked as shown in Fig. l and in full lines in Fig. 2 with the cap 23 in position and the concrete or cement poured or shoveled into the annular space and tamped by suitable means. After the tile is formed and set the rod 11 is pulled upwardly out of the spaced apart brackets 7 and 9 when the shell can be expanded and removed; the cap 23 is then removed and the rod 17 withdrawn from the brackets on the inner surface of the core whereupon it may be contracted the cars 20 abutting the which can be quickly set up and taken down and readily transported from place to place and one by the use of which tiles can be quicklyproduced when wanted.

1. A concrete tile mold consisting of an exterior shell and a collapsible core comprising a sheet of metal bent to cylindrical shape, means adjacent the edges of said sheet for locking the same in operative position and means comprising inwardly projecting tongues carried by the opposite edge of the sheet adapted to abut and slide past said locking means for lessening the diameter of the core to collapse the same.

, 2. A concrete tile mold consisting of an exterior shell and a collapsible core comprising a sheet of metalbent to cylindrical shape, means adjacent the edges of said sheet for locking the same in operative p0- sition, and means comprising inwardly projecting abutments having an inclined face and carried by the opposite edge of the sheet adapted to abut and slide past said locking means for lessening the diameter of the core to collapse the same.

3. A concrete tile mold including an eX- pansible resilient shelland a contractile core, said core consisting of a sheet of resilient material bent to cylindrical shape and having along one edge bent tongues projecting inwardly, and perforated ears above and the inside of the tile.

lUY G. CREbS.

\Vitnesses EARL O. EUBANKS, K. E. SPRAGUE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D 0. 

